_PAGE_NOCACHE
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_NOCACHE)
physaddr |= _PAGE_NOCACHE;
cmode = _PAGE_NOCACHE;
ALT_SVPBMT(val, _PAGE_NOCACHE);
#define _PAGE_KERNEL_NC ((_PAGE_KERNEL & ~_PAGE_MTMASK) | _PAGE_NOCACHE)
prot |= _PAGE_NOCACHE;
#define __NC _PAGE_NOCACHE